Mobile device accessory



FIG. 1 is a top, right side perspective view of a mobile device accessory;

FIG. 2 is a bottom, left side perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM We claim the ornamental design for a mobile device accessory, as shown and described. 